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66 Commits

Author SHA1 Message Date
Sean Anderson df99b4ff6c ice40: Add debugs to isBelLocationValid for SB_IO 
When there is a constraint conflict while placing IOs, the user gets an
error message such as

ERROR: Bel 'X0/Y27/io1' of type 'SB_IO' is not valid for cell 'my_pin' of type 'SB_IO'

While this identifies the problematic cell, it does not explain why
there is a problem. Add some verbose messages to allow users to
determine where the problem is. This can result in something like

Info: Net '$PACKER_VCC_NET' for cell 'my_pin' conflicts with net 'ce' for 'ce_pin'

which provides something actionable.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
 2022-12-07 10:32:38 +01:00
gatecat 603b60da8d api: add explain_invalid option to isBelLocationValid 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-12-07 10:27:58 +01:00
gatecat c60fb94b6c refactor: Use IdString::in instead of || chains 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-08-10 18:58:22 +01:00
gatecat 6122f172e3 ice40: Fix accidental creation of empty ports 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-06-25 15:56:16 +01:00
gatecat 76683a1e3c refactor: Use constids instead of id("..") 
Signed-off-by: gatecat <gatecat@ds0.me>
 2022-02-16 17:09:54 +00:00
gatecat 2ffb081442 Fixing old emails and names in copyrights 
Signed-off-by: gatecat <gatecat@ds0.me>
 2021-06-12 13:22:38 +01:00
gatecat c7c13cd95f Remove isValidBelForCell 
This Arch API dates from when we were first working out how to
implement placement validity checking, and in practice is little used by
the core parts of placer1/HeAP and the Arch implementation involves a
lot of duplication with isBelLocationValid.

In the short term; placement validity checking is better served by the
combination of checkBelAvail and isValidBelForCellType before placement;
followed by isBelLocationValid after placement (potentially after
moving/swapping multiple cells).

Longer term, removing this API makes things a bit cleaner for a new
validity checking API.

Signed-off-by: gatecat <gatecat@ds0.me>
 2021-02-16 13:31:36 +00:00
D. Shah a09a62bc4a ice40: Use snake case for arch-specific functions 
This makes the difference clearer between the general arch API that
everyone must implement; and helper functions specific to one arch.

Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-03 10:46:12 +00:00
D. Shah b31b21fd51 ice40: Implement IdStringList for all arch object names 
Signed-off-by: D. Shah <dave@ds0.me>
 2021-02-02 17:00:33 +00:00
Sylvain Munaut 66b64f928b ice40: Check for SB_IO shared wires conflicts in isValidBelForCell 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2019-04-17 16:07:22 +02:00
Sylvain Munaut a79f0db749 ice40: Add helper to know which global network is driven by a SB_GB Bel 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-26 12:51:14 +01:00
Sylvain Munaut bc9f2da470 ice40: Introduce the concept of forPadIn SB_GB 
Those are cells that are created mainly to handle the various sources a
global network can be driven from other than a user net.

When the flag is set, this means the global network usually driven by
this BEL is in fact driven by something else and so that SB_GB BEL and
matching global network can't be used.

This is also what gets used to set the extra bits during bitstream
generation.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 18:20:20 +01:00
Sylvain Munaut c219d8fe4d ice40: Fix BEL validity check for PLL vs SB_IO 
Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
 2018-11-19 18:20:20 +01:00
David Shah ea03aafc26 clangformat 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-30 15:13:18 +01:00
David Shah d5d9fb27a6 ice40: Validity check for LVDS IO 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-24 15:14:28 +01:00
David Shah 9834b68041 ice40: Remove obsolete belType member 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-09-24 14:27:50 +01:00
Eddie Hung a41500a015 Rework Arch::logicCellsCompatible() to take pointer + size, allowing use of std::array 2018-08-10 19:50:27 -07:00
Eddie Hung 396cae5118 Make containers static 2018-08-09 20:53:33 -07:00
Clifford Wolf f875a37467 Get rid of old iCE40 id_ Arch members 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-08 17:17:16 +02:00
Clifford Wolf e03ae50e21 Get rid of PortPin and BelType (ice40, generic, docs) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-08 17:01:18 +02:00
Clifford Wolf 5e53075990 API change: Use CellInfo* and NetInfo* as cell/net handles (common, ice40) 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-08-05 15:25:42 +02:00
Sergiusz Bazanski 2c34a50a7c ice40: after review 2018-07-25 12:01:51 +01:00
Sergiusz Bazanski aad0d3eb35 ice40: support PLL40_*_PAD, fix pass-through LUT for LOCK 2018-07-25 11:32:21 +01:00
Sergiusz Bazanski b31e95f82c Merge branch 'master' of gitlab.com:SymbioticEDA/nextpnr into q3k/pll 2018-07-24 15:54:03 +01:00
David Shah 5a170f286c ice40: Remove use of deprecated APIs 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-24 15:52:56 +02:00
Sergiusz Bazanski 90ba958abe ice40: fixes before review 2018-07-24 03:19:22 +01:00
Sergiusz Bazanski eaae1d299c ice40: move PLL->IO from pseudo pip to second uphill bel 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski 65ceb20784 ice40: emit list of upbels in chipdb 2018-07-24 02:55:40 +01:00
Sergiusz Bazanski 1d3147e26a ice40: Prevent placement of SB_IOs in IO blocks used by PLL outputs 2018-07-24 02:55:40 +01:00
Clifford Wolf 62b66e0208 Rename getWireBelPin to getBelPinWire 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-07-22 10:59:21 +02:00
David Shah 3bad9c26cf ice40: Optimise reset/enable net checking 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-20 11:36:32 +02:00
David Shah d392b5f635 ice40: Use xArchArgs in validity check 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-18 12:51:07 +02:00
Sergiusz Bazanski 57f75385b0 Revert "Make PnR use Unlocked methods" 
This reverts commit 9e4f97290a.
 2018-07-14 18:53:08 +01:00
Sergiusz Bazanski 447ed83638 Revert "Introduce proxies for locked access to ctx" 
This reverts commit 89809a8b81.
 2018-07-14 18:52:56 +01:00
Sergiusz Bazanski b0c05c7f75 Revert "Refactor proxies to nextpnr." 
This reverts commit 9b17fe385c.
 2018-07-14 18:50:37 +01:00
Sergiusz Bazanski 9b17fe385c Refactor proxies to nextpnr. 2018-07-14 11:10:31 +01:00
Sergiusz Bazanski 89809a8b81 Introduce proxies for locked access to ctx 2018-07-13 18:58:59 +01:00
Sergiusz Bazanski 9e4f97290a Make PnR use Unlocked methods 2018-07-13 14:50:58 +01:00
David Shah e0a851976f refactor: Replace assert with NPNR_ASSERT 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-07-04 12:15:23 +02:00
David Shah c18b7b3f6e ice40: Reworking placement legalisation to allow integration with SA placer 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-29 12:02:34 +02:00
Miodrag Milanovic db890d3a81 nets and cells are unique_ptr's 2018-06-25 21:33:48 +02:00
David Shah bdd54a6847 Refactor: remove PlacementValidityChecker and move methods to Arch 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-25 11:43:59 +02:00
David Shah 1e8840b0f9 Update from increased clangformat line length 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-23 16:12:52 +02:00
Clifford Wolf 746d63f9fa Refactoring bind/unbind API 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-23 15:16:24 +02:00
David Shah 289fca0976 ice40: Move global net test to Arch 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-23 12:09:01 +02:00
Miodrag Milanovic cb92c10b99 Cleanup almost all deprecation warnings 2018-06-23 09:42:48 +02:00
Clifford Wolf aa81f9d648 Switched from clifford@clifford.at to clifford@symbioticeda.com for copyright headers 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-22 16:19:17 +02:00
David Shah 9008669867 Major performance improvement to placement validity check 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-19 14:44:49 +02:00
David Shah 7abfd36773 ice40: Don't deduplicate local tracks when counting 
Signed-off-by: David Shah <davey1576@gmail.com>
 2018-06-19 13:35:01 +02:00
Clifford Wolf 79d1075345 Getting rid of old IdString API users, Add ctx to many internal APIs 
Signed-off-by: Clifford Wolf <clifford@clifford.at>
 2018-06-18 17:08:35 +02:00